Slot Numbering For The Power Supply Slots - Juniper EX8208 Hardware Manual

Slots SRE0 and SRE1 accept only the SRE module. You can install one SRE module or two SRE modules
based on the configuration of your switch. See
EX8208 Switch" on page
NOTE: We recommend that you install two SRE modules for redundancy. If you install only one
SRE module, we recommend that you install it in the slot SRE0. See
in an EX8208 Switch" on page
Slot SF accepts only the SF module. See
EX8208 switch can have either zero SF modules or one SF module based on your switch configuration.
The SF module is keyed so that it does not fit in any other slot in the chassis. See
in an EX8208 Switch" on page

Slot Numbering for the Power Supply Slots

The chassis has six vertical slots on its front bottom. You can install up to six power supplies (either all AC
or all DC) in these slots, which are labeled PSU 0 through PSU 5 (from left to right).
lists the slot numbers for the power supplies on an EX8208 switch. See
Switch" on page 56 and
CAUTION:
supported configuration.
Table 12: Slot Numbering for Power Supply Slots on an EX8208 Switch Chassis Front
Slot Label Components Accepted in Slot
PSU 0 Power supply
PSU 1 Power supply
PSU 2 Power supply
PSU 3 Power supply
PSU 4 Power supply
PSU 5 Power supply
Figure 4 on page 43 shows the slot numbering for the power supply slots in an EX8208 switch.
"Switch Fabric and Routing Engine (SRE) Module in an
78.
255.
"Switch Fabric (SF) Module in an EX8208 Switch" on page
259.
"DC Power Supply in an EX8200 Switch" on page
Mixing different types of power supplies in the same chassis is not a
"Installing an SRE Module
"Installing an SF Module
Table 12 on page 42
"AC Power Supply in an EX8200
70.
42
81. An